baber/WOPTO huggingface dataset:
Patent GB-1227704-A (GB)
IPC: G11B5/187
Filed: 1969-03-11
Abstract: 1,227,704. Magnetic heads. SONY CORP. 11 March, 1969 [15 March, 1968], No. 12718/69. Heading G5R. A gap spacer formed between magnetic core members 1A, 1B consists of a layer 4 protecting the associated core member against oxidation and etching, and a non-magnetic, metal oxide layer 5. As shown, a single ferrite crystal 1 is grooved 3, machined flat at the intended interface with a similar crystal, then etched with dilute HCI. The crystal is heated to 400 C. and the protective layer formed by vapourdeposition of SiO 2 . The assembly is preheated to 200-400 C. and an acid solution of a halide of Sn, Zn, Cd, In, Pb, Sb or Si and/or an acid solution of a salt of Sn or Ti is sprayed or vapourdeposited on the protective layer, then heated to 400-600 C. to form the metal oxide layer in crystalline form. The assembly is cut, joined by adhesive 6 to a similar assembly and a winding 7 provided. The method is applicable to alloy core members and to those having polepieces of material different to the remainder of the core members. The metal oxide layer may be provided on only one core member and omitted at the back gap.
Patent GB-1232265-A (GB)
IPC: C07D241/52
Filed: 1968-11-08
Abstract: 1,232,265. Phenazine-di-N-oxides. CHAS. PFIZER & CO. Inc. 8 Nov., 1968 [5 July, 1968], No. 53152/68. Heading C2C. [Also in Division A5] Phenazine-di-N-oxides are prepared by reacting an isobenzofuroxan with a phenol in the presence of a base, e.g. ammonia, an organic amine or an alkali metal hydroxide, alkoxide or hydride. The isobenzofuroxan reactant may be substituted, e.g. by halogen atoms or C 1-4  alkyl, C 1-4  alkoxy or CF 3  groups. The phenol reactant may also be substituted, e.g. by halogen atoms or hydroxy, C 1-4  alkyl, C 1-4  alkoxy, amino, carboxyalkyl, carboxy, carbalkoxy, methylenedioxy, benzo or pyrido groups, but the substituent does not always appear in the product. For example, isobenzofuroxan reacts with (a) a p-alkylphenol to form the unsubstituted phenazine-di-N-oxide, (b) phenol or phydroxyphenol to form 2-hydroxyphenazinedi-N-oxide, (c) 1,2-dihydroxyphenol to form 2,3-dihydroxyphenazine-di-N-oxide or (d) omethoxyphenol to form 2-hydroxy-3-methoxyphenazine-di-N-oxide. The reaction is preferably carried out in a solvent, e.g. methanol or tetrahydrofuran, at 30 to 100 C.
Patent GB-1234512-A (GB)
IPC: A01B13/00
Filed: 1969-04-01
Abstract: 1,234,512. Steam plough for sterilizing soil. J. E. S. DURNO. 1 April, 1970 [1 April 1969], No. 16894/69. Headings A1B and A1E. A steam plough comprises at least one open ended pipe adapted to discharge steam directly into a cavity or tunnel formed by dragging the pipe through the ground. The pipe may be in the form of a hollow vertical tine 11, Fig. 1, through which steam is passed and which has a horizontal baffle 19, or may be a horizontal pipe 35, Fig. 6, having a chisel endpiece 34 to assist passage through the soil. Steam is supplied through the pipe 33, elliptical in section to decrease soil resistance, and a plug 41 trailed by a chain 43 may be provided to seal the tunnel 44 formed by the pipe. Steam may be supplied to a plurality of pipes from a manifold supported on a frame having a roller for determining the depth of penetration of the plough.
Patent GB-1234529-A (GB)
IPC: F24V30/00
Filed: 1969-09-26
Abstract: 1,234,529. Lithium/calcium alloy. N. V. PHILIPS GLOEILAMPENFABRIEKEN. Sept.26, 1969 [Sept.30, 1968], No.47440/69. Heading C7A. [Also in Division F4] A fuel for the production of heat by reaction with SF 6  consists of Li and Ca, with an atomic ratio Li/Ca of 3À5-4À6, with optional addition of up to 30 atomic % in total of Mg and/or Na. In the Fig. the molten alloy 1 is reacted with SF 6  supplied from inlets 4 and is pumped by pump 11 so that the heat of reaction is transferred to the crown of heater tubes 10 of a hot gas engine. The reacted alloy flows through outlet 6, the fluorides settle in space 5 and the unreacted alloy returns through duct 7.
Patent GB-1238540-A (GB)
IPC: B67D7/74
Filed: 1968-10-09
Abstract: 1,238,540. Petrol pumps. WAYNE TANK & PUMP CO. Ltd. 9 Jan., 1970 [9 Oct., 1968], No. 47961/68. Heading G4D. In a blending pump of the type in which increments are added to a basic price the appropriate increment is selected by the grade selector and the price per unit volume indicator is simultaneously adjusted. Selection of a grade selects one of a number of bars 21 positioned along an indicator bar 22, shafts 20, 23 turning cams 19, 26 to operative position. The operative cam 19 brings its associated idler gear 16 into driving position whereby the appropriate variator drive 14, 15 in an incremental box 13 is enabled. The other operative cam 26 drives a lever 27 which strikes a heart cam 29 to drive a gear 31 and therefore the lowest numeral wheel 1 of a price per unit volume indicator, which is duplicated on the other side of the pump. If the basic price alters the variator is adjusted and a knob 33 is depressed and turned until the new price is shown. Tampering is prevented by a sealed block 34 which prevents depression of knob 33. Alteration of the price differentials is effected by opening a sealed case to gain access to the bars 21, 22.
Patent GB-1238752-A (GB)
Filed: 1969-10-07
Abstract: 1,238,752. Opening containers. SONOCO PRODUCTS CO. 7 Oct., 1969 [11 June. 1969], No. 49110/69. Heading B8D .A container comprises an aluminium or aluminium alloy end 12, which is secured by a double fold seam 13 to a container body 10 and has a tear-out panel 15a defined by a circular score-line 21, and a protective plastics bead 25 adhered to the inner surface of the container body and the end and extending inwardly to or beyond the score-line to guard a consumer from injury on the sharp edge left on removal of the tear-out panel. The bead is a hot-melt adhesive consisting of thermoplastic resins and wax which is applied to the container body rim and subsequently compressed on application of -the container end. The tear-out panel is provided with a pull tab 22.
Patent GB-1250457-A (GB)
IPC: B63B45/00
Filed: 1967-12-13
Abstract: 1,250,457. Lamps. PLESSEY CO. Ltd. 2 Dec., 1968 [13 Dec., 1967], No. 56716/67. Heading F4R. A sealed lamp comprises a transparent or translucent tube 1 and a pair of end closure members 2, 3 which are held in sealed engagement with the tube by an internal housing consisting of a bottom flange 15 secured to the member 2, a wall portion 16 serving as a screen and reflector, and a domed roof portion 17 having a central nut 18 which co-operates with a clamping screw 23 passing through a central aperture 22 in the member 3. The knurled head 25 of the clamping screw makes sealed engagement with a flat boss 19 on the end member. A panel 7 for attaching the lamp to a wall is formed integral with the end member 2 and may extend upwardly (as shown), downwardly, or laterally in the form of a coplanar extension of the end member. In a modification the portion 17 carries a stud which extends through the aperture in the end member 3 and is engaged by a nut or by a bayonet socket in a tightening wheel. The member 3 is secured to the tube 1 by three hollow pins 28 through which the lamp can breathe.
Patent GB-1251037-A (GB)
IPC: D21F1/08
Filed: 1968-10-31
Abstract: 1,251,037. Screening machine. BELOIT CORP. 31 Oct., 1968 [2 Jan., 1968], No. 51729/ 68. Heading B1D. [Also in Divisions D2 and G3] A screening apparatus for papermaking stock comprises inlet 14, concentric cylindrical screening members 16 and 18, outlets for screen rejects 29, 31 and 33, and outlet 17 for the desired material. Rotary vanes 35 and 37 are mounted for rotation, and are immediately adjacent outer and inner members 16 and 18, respectively. Pressure-sensing devices 201, 202 may be provided, together with such a device in outlet 17. The vanes are driven by shaft 50 which is connected to V-belt pulley 89 rotated by belts 90 connected to a power source.
Patent GB-1251727-A (GB)
IPC: C07C1/00
Filed: 1969-03-27
Abstract: 1,251,727. Cyclododecatriene-1,5,9. CHEMISCHE WERKE HULS A.G. 27 March, 1969 [28 March, 1968], No. 16024/69. Heading C5E. After the preparation of cis,trans,transcyclododecatriene-1,5,9 by cyclotrimerizing butadiene in the presence of an inert diluent and a catalyst comprising TiCl 4  and an alkyl aluminium halide, the product recovery is enhanced by decomposing the catalyst components by adding NH 3  in the form of a concentrated aqueous solution, the amount of NH 3  being 1-10 times the total catalyst. A voluminous precipitate forms which may be filtered off. Alternatively, either water or aqueous alkali may be added after the ammonia. Water causes the precipitate to become granular, and alkali causes it to dissolve leaving two liquid phases which may be easily separated.
Patent GB-1252313-A (GB)
IPC: B64D25/06
Filed: 1969-05-30
Abstract: 1,252,313. Vehicle safety harness. PACIFIC SCIENTIFIC CO. 30 May, 1969 [16 July, 1968], No. 27588/69. Heading A3V. In a safety harness, suitable for an aircraft ejector seat, having an inertia mechanism as described in Specification 874,324, and comprising a strap 2 wound on a rotatable spindle 3 in a housing 5, an emergency rewind device, to draw the user against the seat back, e.g. prior to ejection, has a fluid-actuated portion 7, Fig. 4, comprising a housing 9 containing a rotatable drum 6, connected by springs 4, 4' to the spindle 3, and a piston 10, connected via a conduit 12 to a fluid pressure source 13. Activation of the source 13, produces axial motion of the piston 10 and a splined ballscrew nut 15, which rotates a ball-screw shaft 19, shearing a pin 28 and rotating the drum 6 to wind up the springs 4, 4', thus rotating the spindle 3 and winding in the strap 2. The conduit 12 and housing 9 are filled with hydraulic fluid, which, on activation of the pressure source 13, leaks away via a rupture disc 24, allowing rapid but not excessive movement of the piston 10. O-ring seals 11 and 26 effectively prevent hydraulic fluid leakage since during normal operation of the harness they are not subject to friction. The device provides a rapid wind-in of about 18",'and this may be doubled by use of a multiplier gearing, Figs. 5-7 (not shown).
Patent GB-1252380-A (GB)
IPC: G03B21/62
Filed: 1970-07-17
Abstract: 1,252,380. Diffusion screens. PFIZER Inc. 17 July, 1970 [20 April, 1970], No. 34660/70. Heading B2E. A diffusion device comprises a transparent resin film on one of the surfaces of which is a relatively thin coating comprising the solids content of a lacquer composition containing alumina of average particle size 0.25 to 40 microns, in a ratio of alumina:lacquer of from 0.5:1 to 3:1, the percentage difference of the indices of refraction of the resin of the film and of the alumina being from 1 to 25%. The base film may be of polymethylmethacrylate, cellulose acetate, cellulose acetate butyrate, a bisphenol A-epichlorohydrin resin, a phenol/formaldehyde resin, a cast polyester which may be rigid or flexible, polystyrene or polyethylene terephthalate. The resin of the lacquer coating may be the same as that of the film and preferably the polyester resin lacquer is a linear copolymer of a polymethylene glycol of up to 6 carbon atoms, terephthalic acid, isophthalic acid and at least 2 acyclic dicarboxylic acids. The solvent for the lacquer may be dioxane, tetrahydrofuran, methylene chloride or chloroform.
Patent GB-1252772-A (GB)
IPC: B23K3/06
Filed: 1968-10-23
Abstract: 1,252,772. Applying thermoplastic material. SWINGLINE Inc. 23 Oct., 1968 [16 April, 1968], No. 50321/68. Heading B2L. [Also in Divisions Fl and H1] A device for dispensing heat liquefiable nomally solid material has a material container 31 into which is fed a stick of material 29 which is provided with ratchet teeth 68, engaged by a pawl 63 operated by a trigger 62. The container 31 has a heating element 36 controlled by a thermostat 44 (see Division H1), which heats and melts the material, the unmelted portion of the material acting as a piston to propel the material to a nozzle 37. from the container. The nozzle is rotatable to act as a valve.
Patent GB-1257718-A (GB)
IPC: F16F1/40
Filed: 1969-03-21
Abstract: 1,257,718. Railway vehicle suspensions. PNEUMATIQUES CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBERCOLOMBES. 21 March, 1969 [26 March, 1968], No. 15103/69. Heading B7L. [Also in Division F2] A spring for laterally supporting railway vehicle bodies consists of a rubber block 1 bonded over each of its end surfaces 2 to the bearing surface of an end member 3 and subdivided by at least one intermediate rigid plate 7. The angle b in the unstressed state is required to be greater than either of the angles a, and to decrease (to b<SP>1</SP>, Fig. 3, not shown) when the spring is compressed in the direction x-x. The spring resists deformation in the direction B. Preferably the angles a are equal, and there is only one intermediate plate which is located in the middle of the block and inclined at 90 degrees to the axis x-x in the unstressed state. When there are several plates, Fig. 4, those between an end surface and the median plane are spaced at regular intervals and inclined with respect to the axis x-x at increasing angles b 1 , b 2 , b 3 , between the angle of inclination of the end face (a) and 90 degrees. Figs. 5 and 6 (not shown) depict an assembly of two springs as in Fig. 1 with combined end members.
Patent GB-1257739-A (GB)
IPC: H01S3/139
Filed: 1969-05-06
Abstract: 1,257,739. Lasers. LANSING RESEARCH CORP. 6 May, 1969 [9 May, 1968], No. 23103/69. Heading H1C. In a laser in which the output frequency is stabilized by the use of feedback to an electromechanical transducer which controls the distance between the resonator mirrors, large output frequency perturbations which would cause the transducer to reach an operational limit are detected in the feedback circuit and cause the transducer to adjust the distance between the mirrors by an integral number of half wavelengths of the laser output frequency, the new resonator length enabling the laser to operate in the same longitudinal mode as previously and with the transducer well within its operational range. For stabilizing a laser the position of one of the resonator mirrors is sinusoidally modulated and the modulated laser output detected by a photo-cell 20 and a demodulator 22, Fig. 5. If a gas laser having a Lamb dip A<SP>1</SP>, Fig. 3, in its radiation profile is used, the modulation index is zero when the laser resonator is turned to the bottom of the dip and any deviation from this point is characterized by the phase of the modulated output. The deviation detected by the demodulator 22 is applied through an integrator to a transducer 8 controlling the position of a resonator mirror. A circuit 44 determines when a limit of transducer operation is reached, the circuit including upper and lower limit discriminators and capacitors C2 and C3 either of which when discharged through the integrator causes the transducer to appropriately adjust the resonator length by an integral number of half wavelengths. Optionally a switch 42 in the demodulator circuit is opened during the adjustment period. The circuit 44 is described in detail with reference to Fig. 6 (not shown). Reference has been directed by the Comptroller to Specification 1,082,961.
Patent GB-1259364-A (GB)
IPC: G06G7/22
Filed: 1969-03-24
Abstract: 1,259,364. Pulse modulation. COMPAGNIE DES COMPTEURS. 24 March, 1969 [25 March, 1968], No. 15338/69. Heading H3R. [Also in Divisions G1 and G4] A signal generator produces quadrature signals which may represent the components H x , H z  of the earth's magnetic field H within a ship's component where the ship is considered to be rolling about an axis Z between limits Œ α at an angular frequency #, the axis Z being at an angle # to the earth's field H. A signal w having an amplitude proportional to α and a frequency equal to the roll frequency # (of the order of 0À01 to 5 c.p.s.) is generated in an oscillator 10 and fed to a phase modulator 12 which is also fed with two signals Œ V sin #t, where # is an arbitrary carrier frequency much higher than #. The signal w is combined with the phase-opposed signals v 0 , v# in the circuits 21, 22, Fig. 4 (this Figure shows details of the modulator 12), which produce pulses whose leading edges are phase modulated in accordance with the signal w (Fig. 3, not shown). These signals are differentiated by RC circuits 23, 24 and fed to two AND circuits 25A, 25B, each having one input connected to the output of the other, which produce an output in the form of rectangular phase-modulated pulses at a frequency #/2#. This signal is integrated in RC circuit 26 and the resultant triangular pulses fed to a resonant circuit 27 which produces a phasemodulated sinusoidal output. The modulator 12 is provided with a phase shifter 13 which produces two outputs in quadrature, viz. where ## = - α sin #t. The source 11 of the carrier signal v also produces four reference signals having phase displacements 0, #/3, 2#/3 and # respectively and one of these signals is fed to a selector 14 which selects a phase # equal to the deviation of the earth's field (see Fig. 1). The phase-adjusted signal is fed to an attenuator 17 to which is applied a variable proportional to the field H. The resultant signal is fed to a phase-splitter 15 which produces two signals in phase opposition, viz. The circuit 16 (details in Fig. 5, not shown) effects addition and subtraction of the above four signals to produce four further signals, viz. These signals are fed to detectors and the detected signals subtracted in pairs to produce the voltages and The values of U 0 , U 1 , U 2  are selected so that the amplitudes of the two signals are both substantially equal to U = 2U 0  as required. The signals may be fed to orthogonal coils which generate the required magnetic field for testing purposes.
Patent GB-1265999-A (GB)
IPC: A63F3/00
Filed: 1969-11-14
Abstract: 1,265,999. Board game apparatus. R. F. A. EDWARDS. 19 April, 1971 [14 Nov., 1969], No. 55976/69. Heading A6H. Apparatus for playing a board game comprises sets of playing pieces 11, 12 for moving over a board marked with opposing territories containing targets or objectives 5 to be achieved by opposing players and a plurality of target cards which each positively identify the individual targets. A pack of target cards are provided and each player draws one and deploys his playing pieces to destroy the target by reaching the target with a playing piece on an exact throw of a dice. As shown the bombers 11 are used to destroy targets, the fighters 12 are used to destroy the bombers by landing on them with an exact throw of the dice and the anti-aircraft defence pieces 13 are deployed at the start of the game and remain in the same position any playing piece is considered to be destroyed if it lands on a square occupied by a piece 13. In a modification the playing pieces take the form of galleons which are used to ferry gangs to land areas marked with routes.
Patent GB-1289173-A (GB)
IPC: G01N1/38
Filed: 1969-07-28
Abstract: 1289173 Sampling liquids NATIONAL RESEARCH DEVELOPMENT CORP 28 July 1970 [28 July 1969] 37869/69 Heading B1X The movements of an automatic sampling/ dilution apparatus is controlled by at least one read switch which effects intermittent arrest of the movement to allow operation of the diluting means for each of a series of cells in turn.
Patent GB-1289323-A (GB)
IPC: A61K/
Filed: 1969-01-28
Abstract: 1289323 Toothpaste UNILEVER Ltd 23 Jan 1970 [28 Jan 1969] 4644/69 Heading A5B A collapsible toothpaste tube is filled with discrete fillings of differently coloured translucent or transparent toothpaste so that the toothpaste is dispensed in a stream having differently coloured lengths when the tube is squeezed.
Patent GB-1289596-A (GB)
IPC: F25J3/08
Filed: 1970-11-03
Abstract: 1289596 Hydrogen purification process HYDROCARBON RESEARCH Inc 3 Nov 1970 [13 Nov 1969] 52279/70 Heading F4P Separation of condensible hydrocarbons, e.g. methane, C 2 , C 3 , h.c. and light aromatics, is effected by step-wise cooling of compressed feed gas in heat exchangers 14, 25, 30 separating at 21, 26, 36 condensate formed during such cooling, expanding each separated condensate in Joule-Thompson valves 24, 32, 42, passing each expanded condensate reversely through each preceding heat exchanger and supplying cold to the final exchanger 30 from an external source 44, e.g., liquid nitrogen or cold gaseous nitrogen. A propylene-cooled heat exchanger 16 is disposed between exchanger 14 and separator 21 and partly purified hydrogen leaving separator 26 is freed of aromatics by passage through a charcoal bed 28.
Patent GB-1289969-A (GB)
IPC: G01M3/02
Filed: 1969-01-27
Abstract: 1289969 Testing pipes HIGH PRESSURE COMPONENTS Ltd 13 Jan 1970 [27 Jan 1969] 4484/69 Heading G1S [Also in Divisions B8 and F1] A pipe pressure-testing apparatus includes a series of pipe holders moving around a closed path including an intake station and a discharge station, each holder having a pair of sealing devices for sealing the ends of the pipe. The pipe holders consisting of clamps 10 operated by hydraulic rams are mounted on a carrier formed by a series of wheels 1, 2, 3. Wheel 1 is fixed to shaft 11 while wheels 2 and 3 are keyed to the shaft so that their position along the shaft may be varied by hydraulic rams 25. Sealing devices 7 are provided at each end, water being supplied at the first end to test the pipes and air released at the second end as the pipe fills. After test, air is introduced at the second end to force the water back out the first end. To bring the sealing devices into operation hydraulic fluid is introduced at 82 into cylinder 60 to move piston assembly 61, 62 &c. forward until the sealing ring 81 is within the end of the pipe. The hydraulic fluid then flows'up channel 83<SP>1</SP> into a further cylinder 70 causing slider 68 to move to the right relative to expander 73 to expand the sealing ring 81 to seal the pipe. After test, the hydraulic fluid-pressure is released and spring 78 causes slider 68 to move back to break the seal. Fluid is then introduced at 84 to withdraw piston 61. The sealing devices may be mounted on hydraulic rams, Fig.4 (not shown) which expand telescopically until the sealing ring is within the pipe, when the pipe end actuates a switch to stop further expansion of the ram. Instead of a carrier comprising wheels, an endless belt may be used. The testing apparatus may form part of an apparatus for facing pipe ends and testing pipes, Fig. 2 (not shown).
Patent GB-1295404-A (GB)
IPC: G06C7/10
Filed: 1971-04-19
Abstract: 1295404 Shifting calculating machine pin carriages CITIZEN WATCH CO Ltd 19 April 1971 [11 Feb 1970] 20326/71 Heading G4B A calculating machine pin carriage 16, in which a number has been set up, (in the leftmost three orders as shown, pins 15 being the escapement pins which in conjunction with a stop 17 determine the position of the carriage) is shifted backwards against the action of spring 18 (e.g. during a division calculation) by a bellcrank lever 5; lever 5 is first rotated about a fixed pin 2 from its rest position (Fig. 1) to clear the lowest order set pin 15 (Fig. 2), and is secondly shifted to the right (Fig. 3) to shift the carriage back through one step, the cleared pin 15 then holding the adjusted carriage position. Stop 17 is non- fixedly mounted and arranged such that movement of the cleared pin 15 from left to right across the stop is permitted. Lever 5 is actuated by a bellcrank lever 1, which is rocked about pint 2 by a rod 3. Arm 1b of lever 1 carries a pin 4, received in a slot 7 formed in lever 5. Another slot 6, formed in lever 5, receives the pin 2. A spring 11 keeps the right hand end of slot 6 in engagement with the pin 2 until the Fig. 2 position is reached, when the cleared pin 15 prevents further rotation of lever 15, so that further rocking of lever 1 can only result in the shift of lever 5 to the Fig. 3 position.